Highlights

  • Western Mines Group has been awarded the maximum $250,000 under the WA Government's Co-funded Geophysics Program 2026-2027 (Venture 3 of EIS), to be used toward a ~35km² active seismic survey at its flagship Mulga Tank Ni-Co-Cu-PGE Project.
  • The proposed ~100 line kilometre seismic program aims to image the 3D architecture of the Mulga Tank Ultramafic Complex down to 2,000m depth, targeting the basal contact zone for Perseverance-style massive nickel sulphide accumulations, with WMG holding a Mineral Resource of 1,968Mt at 0.27% Ni (5.3Mt contained nickel) — the largest nickel sulphide deposit in Australia as of April 2025.
  • With shares trading at $0.190 and a market capitalisation of approximately $21.61 million as of 27 April 2026, WMG presents a sub-$25M market cap against what management describes as a nationally significant mineral resource, with the EIS grant partially de-risking upcoming exploration expenditure.

Western Mines Group Ltd (ASX:WMG) is a Perth-based mineral exploration company with a primary focus on nickel sulphide discovery at its Mulga Tank Ni-Co-Cu-PGE Project, located within the under-explored Minigwal Greenstone Belt of Western Australia. As of the close of trade on 27 April 2026, WMG shares were priced at $0.195, 2.63% higher on the day. The company had cash reserves of $3.14 million as at 31 December 2025 and 113.75 million shares on issue.

Despite hosting what management describes as the largest nickel sulphide deposit in Australia — a Mineral Resource Estimate announced in April 2025 of 1,968Mt at 0.27% Ni, equating to over 5.3 million tonnes of contained nickel — WMG's share price has remained well below $0.25 through 2025 and early 2026. The disconnect between resource scale and market valuation is not unusual for small-cap explorers in the current macroeconomic environment, where nickel prices have faced pressure from elevated Indonesian supply and subdued battery-sector demand globally. Nevertheless, WMG's exploration pipeline continues to generate technical milestones, the latest of which is the grant of $250,000 from the Western Australian government's Exploration Incentive Scheme (EIS).

The EIS Grant: Mechanics and Strategic Significance

The Western Australian Government's Co-funded Geophysics Program, administered under the EIS, competitively awards co-funding to exploration companies seeking to undertake geophysical surveys that add material understanding to underexplored mineral belts. Western Mines Group was successful in Venture 3 of the 2026-2027 program, receiving the maximum permissible grant of $250,000, which will fund 50% of the direct acquisition costs of a ground-based active seismic survey within tenement E39/2132.

The grant is strategically significant for several reasons. First, it confirms the technical merit of WMG's application as assessed by an independent government evaluation panel, lending external credibility to the Mulga Tank Ultramafic Complex as an exploration target. Second, the $250,000 co-funding meaningfully reduces the company's cash outlay for what would otherwise be a survey costing approximately $500,000 in direct acquisition costs — a material consideration for a company with $3.14 million in cash. Third, the grant allows WMG to accelerate a data-gathering phase that its team considers critical to transitioning from a disseminated resource model to the pursuit of high-value basal massive sulphide accumulations.

Seismic Survey Design: What WMG Plans to Image

The proposed active seismic survey will cover approximately 35 square kilometres, encompassing the main body of the Mulga Tank Ultramafic Complex. The survey design envisages approximately 65 line kilometres of active 2D seismic lines, supplemented by a further 35 line kilometres of receiver-only lines, orientated in north-south and east-west directions. Active lines are spaced at approximately 1km intervals, with receiver-only lines infilling to approximately 500m spacing, predominantly positioned along existing tracks to minimise native vegetation clearing.

The technical objective is to generate a pseudo-3D seismic cube with sufficient resolution to image the sub-surface down to depths exceeding 2,000 metres. At that resolution, the survey is expected to map the basal footwall contact of the target intrusion — the horizon which geologists consider most prospective for the accumulation of massive nickel sulphides in Perseverance-style deposits. The Perseverance deposit in Western Australia, operated by IGO, has historically set the benchmark for basal massive sulphide targeting in ultramafic systems, and WMG is applying a comparable geological model to Mulga Tank.

In addition to basal contact mapping, WMG intends to use the seismic data to identify possible feeder vents within the complex and to integrate results with existing belt-wide magnetic and gravity datasets. If successful, the survey could help define the overall magma pathway through the Minigwal Greenstone Belt, unlocking broader targeting potential across the belt for nickel sulphide deposits — a dataset of value not only to WMG but potentially to the wider exploration community operating in the region.

Exploration History and Resource Development at Mulga Tank

WMG has been conducting systematic exploration at Mulga Tank for approximately three years, deploying a two-pronged strategy combining reverse circulation (RC) drilling to define shallow disseminated nickel sulphide mineralisation, and diamond drilling to test deeper targets. This approach underpinned the April 2025 Mineral Resource update, which cemented Mulga Tank's status as Australia's largest nickel sulphide deposit by contained metal. The resource sits at 1,968Mt at 0.27% Ni, a grade that reflects disseminated rather than massive sulphide mineralisation — the latter carrying materially higher nickel content and economic potential.

The company's board and technical team have consistently communicated that the highest-priority target at Mulga Tank is not the shallow disseminated resource, but rather the deeper basal massive sulphide horizon. WMG Chairman Rex Turkington noted at the time of the EIS award that the company had been awaiting the regional EIS Geophysical Program to reach the Mulga Tank project area for three years, underscoring the strategic patience behind this milestone. The seismic survey is positioned as the next logical step in a structured exploration program, aimed at directing diamond drilling toward the highest-probability zones for massive sulphide accumulation.

Financial Position and Capital Efficiency

At the close of calendar year 2025, WMG reported cash holdings of $3.14 million. With a market capitalisation of $21.61 million and 25.70 million options outstanding in addition to 113.75 million shares, the company's capital structure reflects the typical profile of a small-cap ASX explorer. The EIS grant, by underwriting half of the seismic survey's direct costs, improves the company's capital efficiency at a point where preserving cash for high-priority drilling programs is paramount.

The grant terms specify that the survey may commence from 1 June 2026, and WMG has indicated it will be incorporated into the next phase of its exploration plans. This timeline alignment suggests the company expects to mobilise the survey within the first half of fiscal year 2027, with results potentially available to guide diamond drilling decisions in the latter half of the year. For investors monitoring WMG's catalysts, the progression from survey planning to data acquisition to drilling decisions represents a structured newsflow pathway over the next twelve months.

Conclusion

Western Mines Group's successful application for the maximum $250,000 EIS co-funding grant marks a meaningful operational milestone for the company, providing both financial relief and strategic direction for the next phase of its Mulga Tank exploration program. The planned active seismic survey represents the most technically advanced data-gathering exercise the company has undertaken to date, designed to resolve the 3D architecture of the Mulga Tank Ultramafic Complex and direct high-value drilling toward basal massive sulphide targets. With shares at $0.190, a market cap of $21.61 million, and a declared nickel resource of national scale, WMG enters the mid-2026 exploration phase with a partially government-funded program and a clear technical roadmap — the execution of which will be closely watched by investors and analysts tracking Australia's nickel sulphide sector.